Brake arrangement for six-wheel trucks.



J; A. PILUHER. BRAKE ARRANGEMENT FOR SIX-WHEEL TRUCKS. APPLIOATION FILEDAUG. 16,1913.

1,095,594. Patented May 5, 1914.

'rrrcn JOHN PILOHER, J5 ROANOKE, VIRGINIA.

BRAKE ARRANGEMENT FOR SIX-WHEEL TRUCKS.

Specification of-Letters Patent. Application filed Augiist 16, 1913.Serial No. 785,144. I

' Patented May 5, 1914.

To all whom it may concern:

Be it known that I, JoHNA. PILGHER, a

' citizen of the United States, residing at Roanoke, in the county of;Roanoke and State of Virginia, have invented certain new and usefulImprovements in Brake Arrangements for SiX-l/Vheel Trucks, of which thefollowing is a specification.

The object of this invention is to provide a simple and efiicient meansfor. the opera-- tion of the brakes on six wheel trucks for railwaycars, with which object in view it consists of the arrangement andcombination of parts as herein described and claimed.

In the drawings, Figure 1 represents in plan view a. truck with myinvention applied, Fig. 2 is a longitudinal cross section taken on theline A B, Fig 1, and'Fig. 3

an end elevation of the same.

Referring to the drawings in which lik parts are similarly designated,wherever they occur, 1 represents the bolster-of a six wheel truck, 2the side frames of the same and 34 and 5 the pairs of wheels on theirrespective axles. The brake beams 67 and 8 p are hung from the sideframes 2 or from some other suitable part in the customary manner bymeans of U-shaped hangers 9 which are use in braking the wheels 4 isactuated by means of a dead lever 15 which is permanently fulcrumed at apoint 16 to some suitable part of the truck. This point 16 is at thelower extremity of'the lever '15. Between the extremities of the lever15, at 17 the brake beam 7. is pivotally connected lothe lever 15. Apull rod 18 is pivotally connected to the upper extremity of the deadlever 15 at 19 in sucha manner that a pull in the rod 18 Wlll force thebrake shoes of the beam against the wheels 4. The other end of the pullrod 18 is pivotally connected at 20 to the upper extremity of a floatinglever 21, to which lever is. pivotally connectedbetween its extremitiesat 22 the brake beam 6 for the wheels 3.- To the lower extremity of thefloating lever 21 s pivotally connected at 23 a pull rod 24:

will force the shoes 14 of the brake beam 6 up against the wheels 3, andthe floating lever 21, then 'fulcruming about 22, will apply the brakesto the wheels 4 through the pull rod 18. The opposite end of the pullrod 24 is .pivotally connected at 25 to the lower extremity of a livelever 26 to which. is pivotally connected, between its extremities, at

:27, the brake beam 8 for the wheels 5.. To the upper extremity of thelive lever 26 is pivotally connected at 29 a pull rod or other tensionmember 30 which is actuated from the brakingv means on the car body. Thelive lever 26 is soarranged that a pull in the rod 30 will force theshoes llof the a i n which 1s so arranged that a pull 1n this rod beam 8up against the wheels 5, and the live lever 26, then fulcrumlng about 27will pull on the rod 30 and apply the brakes on the other two pairs ofwheels as already described. It should be noted that the same resultswill be attained if the pull rod 30- is attached to the opposite end ofthe system of levers at 16 and the permanent fulcrum betransferred from16 to 29, in which case the lever 15 becomes the live lever of thesystem and the lever 26 becomes the dead lever; v

By correctly proportloning the various levers, a perfectequalization ofthe braking power will be obtained among the three pairs of wheels. 1

Having thus described my invention, what I claim is, r

I'n'a -brake arrangement for s x wheel trucks the'combination of adeadlever fulcrumed at one extremity, a brake beam pivotally connected tosaid dead lever between the extremities thereof, a tension memberpivotally connected at one end to the other extremity of said deadlever, a floating lever to which is pivotally connected atone extremitythe other end of the said tension member, a second brake beam pivotallyconnected to said floating lever between the extremities thereof, asecond tension member pivotally connected at one end to the otherextremity of said-floating lever, a live lever v to which is pivotallyconnected at one extremity the ether end of said second tension Inteet-imon'y whereof I ufiix my signature 'member, n Hn'rd brake beampivotally eon in presence 0 two witnesses.

nected to said live lever between the ex- T 'tremities thereof. andmeans for actuating JOEL P 5 the other extremity of said live lever fromVitnesses:

the brake mechanism of the car body, sub- R01 K. BROWN,

sl'antially as described. HARRY B. WADE.

